Rotary brush.



H. NIELSON;

ROTARY BRUSH. APPLICATION FILED AUG. 14,1913.

azenmcw Patgnted Jan. 19, 1915.

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scram: eases.

To all whom 61'; may concern:

Be it known that I, ENRY Wrasse-N1, a subject 01 the Kin of Denmark, and a resident oil the city 0 Kolding, Denmark, have invented a new and useful Improvement in Rotary Brushes, of which the following is a specification, the principle of the invention being herein explained, and the best mode in which Ihave contemplated applying the principle, so as todistinguish iti rorn other inventions. i

The subject of the presentinvention is an improved brush of the type usually known as sectional brushesin which a number of sections or segments. are, securely held between holding members'which are adapted to be engaged upon a rotatinghub or shaft. The particular feature of; the, brush to which the present invention relates, is the attachment of the brush sections to the clamping or holding members. essary' to provide a secure and yet simple engagement between the brush sections and the clamping members in order to prevent the relative movements of the brush and the clamping members, and it is also desirable to provide a construction which may be quickly and easily assembled without using extra parts, such as pinsand other elements usually required in such a device.

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing :-Figure 1 is a side elevation showing one of the clamping members with a brush section in position thereon; Fig. 2 is a section through an assembled brush when in position upon a shaft; Fig. 3 is a side elevation of one of the clamping members; Fig. l is a perspective' view of oneof the spacing lugs. and Fig. 5 is an elevation showing the method of engagement of the base strands of the brush.

In Fig. l I show a brush section composed of a plurality of base strands 1, which are twisted together thereby engaging the brush filaments 2 in the usual mans ecificatio or tears retain.

est ma i n fi ed August 9 8. 'tlsrlal n. teases.

It. is nee Patented ran. as. rare.

nenfl 'lhe hrush sections are preferably,

though not necessarily, semi-circular. Whateyer-be the length of the section the base strands are assembled as illustrated in Fig. 5. One of the base wires is of the length of the section, and twisted withthat wire are two other wires which are $0: gather substantially equal to the length of the section. At the two ends of the section the, ends of the base wires are outwardly and oppositely ijdirected, and at the intermediate point where the inner ends of the two shortergwires meet, those meeting ends are also outwardly and oppositely directed. The brush section is held in clamping ele merit consisting of holding members 4. in the form of disks. which are provided with central circular apertures 5 connected with two outwardly extending slots 6. At intervals-,-areund;thedisks there are other and s'rnalier apertures 7. The ends 3 of? the base strands are so positioned that upon placing the brush section against the disk 4 the ends 3 of the strands enter the apetures 7 and are engaged therein by means of the second holding member which is placed adjacent to the first holding member and in a parallel relation, as shown in Fig. 2. The apertures 7 are large enough to permit the entrance of the ends of the base wires of two adjoining segmental sections. When the disks are so placed as is their relation in Fig. 2, the oppositely directed ends 3 of the strands are engaged in one of the apertures 7 in the holding members, audit is only necessary to retain the holding members in such relation to securely clamp the brush sections between them.

- In order to maintain the disks in the proper relation, spacing lugs or buttons are provided, consisting of enlarged heads 8 and 9 connected by a shank l0, theheads 8 and 9 being larger than the slots 6, while the shank '10 is oi equal size thus adapting the lug or button to have its shank inserted in the slots 6 in the two disks when the two heads will engage against the outer sides of the disks and prevent disengagement so long as the button is prevented from disengaging with the slots 6. The disks in this position are then engaged upon a shaft or hub ll. thus preventing disengagement of the buttons; while the disks are prevented from sliding oil the shaft by a collar 1% and lock nuts 13.

10 my invention may The present Construction is simpler and easier to assemble than the usual construction' which necessitates .the tormation of lugs on the clamping members, orelse pro- 5 VISIOII of a number of pins or locking lugs which engage loops formed by the benta p ends of the strands, such, pins V be ing 15, stated means be employed.

I therefore particularly point outand distinctly claim as my invention i. In a device of the class -described, the combination of a clamping element consist- 20 ing of two holding members provided with similarly disposed apertures, said members being disposed to brmgfsuch apertures mto register, and abrush section mounted between said holding membersand provided 5 with base strands having oppositely directed and outwardly extending end portions adapted to engage in such apertures in said holding-members.

disposed "apertures, prised-to brmg such apertures into register, a brush applyin the principlgofi spective members.

Lies, Lies;

2. In a device of the class described, combination of a clamping element consis mg of tv'vo disks provided with similarly said disks being dissection mounted between said disks and provided with base strands having oppositely directed and outwardly ex tending end portions adapted to engage in such apertures in said disks when in re, s ter; and means adapted maintain s disks in register.

3.- In a'device oi the class described, the combination of two spaced members each provided With a circular series of apertures, the apertures in the two members being in register; and a brush members and including base Wires prov at circularly spaced positions d "with out wardly" an oppositely extending ends adapted to engage the apertures in the re o Signed at-Koldiiig, Denmark, this 12 day of June, 1-913.

. HENRY NIELSON.

" Witnesses:

' 1 @tr'ro'KoIsA,

TH, JOHANSEN.

mounted between me 

